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Audiobot Notes
Peak SPL

110.1 dB

This was approximated from the source output at 32 Ω

Damping factor 230.8
Sennheiser HD 660 S
Impedance 150 Ω
Efficiency 95.8 dB SPL/mW
Frequency Response 10 - 41,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 260 g
Price History
Current $489.99
Highest $700.00
Lowest $489.99
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AudioQuest DragonFly
Output Impedance 0.65 Ω
Power Output 125 mW at 32 Ω
Additional Notes
"The heart of DragonFly is the 24-bit ESS Sabre™ conversion chip, a high-performance solution that’s typically found in better CD and Blu-ray Disc™ players. DragonFly can accept audio and music files ranging from MP3s and CD-standard 16-bit/44kHz to native 24-bit/96kHz high-resolution, regardless of music file format. If your computer’s software can recognize and play a format, DragonFly will make it sound its best."
Price History
Current $99.00
Highest $99.95
Lowest $99.00
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